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The QPSK Modulated Signal Using the Improved ISI-JF Pulse for Digital Wireless Ad Hoc Communication

机译:使用改进的ISI-JF脉冲的QPSK调制信号用于数字无线Ad Hoc通信

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摘要

The inter-symbol interference time jitter free (ISI-JF) coding and constant phase modulation (CPM) technologies are very important in nonlinear communication channels. This paper addresses the principle and the properties of the ISI-JF base-band pulses. By using pulse-shaping and phase path-controlled technologies, a new ISI-JF pulse is presented, which has better performance. Simulation results show that when the improved ISI-JF pulse is applied to quaternary phase shift keying (QPSK) technology, the ISI-JF modulated signals can provide a more continuous phase path and get 3 dB envelope fluctuation reductions with small additional complexity.
机译:符号间干扰时间无抖动(ISI-JF)编码和恒定相位调制(CPM)技术在非线性通信信道中非常重要。本文介绍了ISI-JF基带脉冲的原理和特性。通过使用脉冲整形和相位路径控制技术,提出了一种具有更好性能的新型ISI-JF脉冲。仿真结果表明,将改进的ISI-JF脉冲应用于四相移相键控(QPSK)技术时,ISI-JF调制信号可以提供更连续的相位路径,并减少3 dB的包络波动,而附加的复杂度却很小。

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  • 来源
    《Annual review of communications》 |2008年第2008期|393-397|共5页
  • 作者单位

    Electronics and Computer Discipline Indian Institute of Technology at Roorkee;

    Electronics and Computer Discipline Indian Institute of Technology at Roorkee;

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  • 正文语种 eng
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